4Mb EPROM 512Kx8 100ns Parallel DIP-32 UVPROM
M27C4001-10F6
512KX8 OTPROM, 100ns, PQCC32, LEAD FREE, PLASTIC, LCC-32
512KX8 UVPROM, 100ns, CDIP32, LEAD FREE, CERAMIC, WINDOWED, FRIT SEALED, DIP-32